import { CodeBlockPosition } from '../base/interface';
import { IEditorModel } from '../../common/interface';
/**
 * Code Block internal component
 *
 * @hidden
 * @private
 */
export declare class CodeBlockPlugin {
    private parent;
    /**
     * Constructor for creating the Code Block plugin
     *
     * @param {IEditorModel} parent - specifies the parent element
     * @hidden
     * @private
     */
    constructor(parent: IEditorModel);
    private addEventListener;
    private removeEventListener;
    destroy(): void;
    private applyCodeBlockHandler;
    private callBack;
    /**
     * Determines if a node is inside a valid code block structure
     *
     * This method checks if the given node is within a proper code block structure
     * (a PRE element containing a CODE element as its first child).
     *
     * @param {Node} node - The node to check
     * @returns {HTMLElement|null} - The PRE element if the node is inside a valid code block, otherwise null
     * @public
     */
    isValidCodeBlockStructure(node: Node): HTMLElement | null;
    isCodeBlockEnterAction(range: Range, e: KeyboardEvent): boolean;
    private codeBlockBackSpaceAction;
    private handleKeyUpBackspace;
    private isCodeBlockElement;
    private handleKeyDownBackspace;
    private handleSelectionAcrossCodeBlockBoundary;
    private moveContentToParent;
    private setCursorAfterBoundaryOperation;
    private cleanupEmptyElements;
    private handleSelectionFromCodeBlockToRegular;
    private addBrElementIfMissing;
    private handleSinglePointDeletion;
    private handleDeleteKeyAtCodeBlockBoundary;
    private isBrAsLastChildInCodeBlock;
    private handleActionWhenNextSiblingIsNull;
    private handleActionWhenNextSiblingExists;
    private processListElement;
    private findNextValidSibling;
    private findFirstListItem;
    private isValidNode;
    private nodeCreateBasedOnEnterAction;
    private mergeNextContentIntoCodeBlock;
    private processInlineNextSiblings;
    private handleNextSiblingCodeBlockDeletion;
    private mergeCodeBlockWithCurrentNode;
    private handleBackspaceAtCodeBlockStart;
    private mergePreviousElementWithCodeBlock;
    private handleBackspaceAfterCodeBlock;
    private mergePreviousCodeBlockWithCurrent;
    private processMergeBlockNode;
    private processMergeInlineNode;
    private codeBlockEnterAction;
    private isCodeBlockPointSelection;
    private isFirstAppendScenario;
    private isLastAppendScenario;
    private handleCodeBlockPointSelection;
    private setNewRangeBeforeBrElement;
    isSelectionWithinCodeBlock(range: Range, startContainer: Node, endContainer: Node): boolean;
    private handleSelectionWithinCodeBlock;
    private isSelectionOutsideToInside;
    private handleOutsideToInsideSelection;
    private isSelectionInsideToOutside;
    private handleInsideToOutsideSelection;
    private findFirstTextNode;
    private getSelectionRange;
    private codeBlockPasteAction;
    private isPointSelection;
    private isSameCodeBlockSelection;
    private handlePointSelectionPaste;
    private handleSameCodeBlockPaste;
    private handleCrossCodeBlockPaste;
    private extractAndWrapCodeBlockContent;
    private isRevertCodeBlock;
    private codeBlockCreation;
    private revertCodeBlockToNormalText;
    private createNewCodeBlock;
    private checkTableElementInsideSelection;
    private isRangeInsideTable;
    private getBlockNodes;
    private getTextAndBrNodes;
    private includeFullNodeForRange;
    private wrapTableElementToList;
    private processNodeForBlockNodes;
    private processCodeBlockAction;
    private formatCodeBlock;
    private disableToolbarItems;
    private insertFragmentAtNode;
    private removeNodes;
    private processNode;
    private setCursorMarkers;
    private restoreCursorFromMarkers;
    /**
     * Searches for code block elements that are siblings or parents of the current selection
     *
     * This method traverses up the DOM tree from the selection's start container,
     * checking each next sibling to find code block structures. It's used primarily
     * for delete operations to determine if pressing Delete at the end of content
     * should merge with a following code block.
     *
     * @param {Range} range - The current selection range
     * @returns {Object|null} - Object containing current node and its next sibling code block,
     * with properties currentNode (Node) and nextSibling (Node), or null if no code block is found
     * @public
     */
    findParentOrNextSiblingCodeBlock(range: Range): {
        currentNode: Node;
        nextSibling: Node;
    } | null;
    /**
     * Searches for code block elements that are siblings or parents before the current selection
     *
     * This method traverses up the DOM tree from the selection's start container,
     * checking each previous sibling to find code block structures. It's used primarily
     * for backspace operations to determine if pressing Backspace at the beginning of content
     * should merge with a preceding code block.
     *
     * @param {Range} range - The current selection range
     * @returns {Object|null} - Object containing current node and its previous sibling code block,
     * with properties currentNode (Node) and previousSibling (Node), or null if no code block is found
     * @public
     */
    findParentOrPreviousSiblingCodeBlock(range: Range): {
        currentNode: Node;
        previousSibling: Node;
    } | null;
    getCodeBlockPosition(range: Range): CodeBlockPosition;
    /**
     * Determines if a keyboard action should be disallowed within a code block
     *
     * This method checks if the current selection is within a code block and if the
     * keyboard action being performed is not in the list of allowed actions for code blocks.
     * It helps maintain proper code block behavior by preventing formatting operations
     * that would break code block structure.
     *
     * @param {KeyboardEvent} e - The keyboard event being processed
     * @param {Range} range - The current selection range
     * @returns {boolean} - True if the action should be disallowed, false otherwise
     * @public
     */
    isActionDisallowedInCodeBlock(e: KeyboardEvent, range: Range): boolean;
    private codeBlockTabAction;
    private codeBlockShiftTabAction;
    private handleCodeBlockIndentation;
}